--- Revision 569
+++ Revision 570
@@ -19,6 +19,8 @@
   
   <body id="test">    
     <h1>Prototype UI autocomplete Demo (Ajax)</h1>
+    Ajax requests are simulated by stubbing Ajax.Request#onComplete and may not work on some browser (like IE)<br>
+    One second delay is set to simulate also internet traffic<br><br>
     Type "e" for example to see autocompletion.<br/><br/>
     <form action="test_submit" method="get" accept-charset="utf-8">
       <div id="input-text">
@@ -36,16 +38,22 @@
     <button onclick="return false;">Submit</button>       
     <script  type="text/javascript">
     
-    
+    // Simulate AJAX response from server. It filters response values with input search string and handles unique options
     Ajax.Request.prototype.originalInitialize = Ajax.Request.prototype.initialize;
     Ajax.Request.prototype.initialize = function(url, options) {
+      var unique = ac.options.unique;
+      
       options.onComplete = options.onComplete.wrap(function(proceed, request, json) {
-        //console.log(request.responseText)
         var list = request.responseText.evalJSON();
-        var value = $("pui-demo").value;
-        list = list.findAll(function(entry) {return entry.text.match(value)});   
-        proceed.curry(request, json).delay(0.1);
-      });
+        // Simulate a search on server
+        list = list.findAll(function(entry) {return entry.text.match(this.search)}.bind(this));  
+        if (unique && !this.selected.empty())
+          list = list.findAll(function(entry) {return !this.selected.include(entry.value)}.bind(this));
+        request.responseText = list.toJSON()
+        proceed.curry(request, json).delay(1);
+      }.bind(this));
+      this.search = options.parameters.search;
+      this.selected = options.parameters.selected;
       this.originalInitialize(url, options);
     }
 
@@ -54,10 +62,11 @@
     Event.observe(window, "load", function() {
       ac = new UI.AutoComplete('pui-demo', { url:             "../../fixtures/auto_complete.json", 
                                              shadow:          "drop_shadow"
+                                             
                                              });
-      ac.observe('input:empty',     function() {ac.showMessage("Type a user name")})
-        .observe('request:started', function() {ac.showMessage("Please wait...")})
-        .observe('selection:empty', function() {ac.showMessage("Nothing found")});
+      ac.observe('input:empty',     function(event) {event.memo.autocomplete.showMessage("Type a user name")})
+        .observe('request:started', function(event) {event.memo.autocomplete.showMessage("Please wait...")})
+        .observe('selection:empty', function(event) {event.memo.autocomplete.showMessage("Nothing found")});
     });
     </script>
   </body>  
